diff options
| author | Sheng Yang | 2007-11-15 14:52:28 +0800 |
|---|---|---|
| committer | Avi Kivity | 2008-01-30 17:53:03 +0200 |
| commit | a7e6c88a78b7c3d67491bf90b2b95e66437dbdb6 (patch) | |
| tree | ca16a7c1c0d18d57b4a04d355d8aea8ade6536cf | |
| parent | f8c16bbaa9e14b309ffcf29cac0ea377a35b0dd2 (diff) | |
KVM: x86 emulator: modify 'lods', and 'stos' not to depend on CR2
The current 'lods' and 'stos' is depending on incoming CR2 rather than decode
memory address from registers.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | drivers/kvm/x86_emulate.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index e6979475bee7..8e2162fc6f70 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -1528,7 +1528,9 @@ special_insn: case 0xaa ... 0xab: /* stos */ c->dst.type = OP_MEM; c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes; - c->dst.ptr = (unsigned long *)cr2; + c->dst.ptr = (unsigned long *)register_address( + ctxt->es_base, + c->regs[VCPU_REGS_RDI]); c->dst.val = c->regs[VCPU_REGS_RAX]; register_address_increment(c->regs[VCPU_REGS_RDI], (ctxt->eflags & EFLG_DF) ? -c->dst.bytes @@ -1538,9 +1540,13 @@ special_insn: c->dst.type = OP_REG; c->dst.bytes = (c->d & ByteOp) ? 1 : c->op_bytes; c->dst.ptr = (unsigned long *)&c->regs[VCPU_REGS_RAX]; - if ((rc = ops->read_emulated(cr2, &c->dst.val, - c->dst.bytes, - ctxt->vcpu)) != 0) + if ((rc = ops->read_emulated(register_address( + c->override_base ? *c->override_base : + ctxt->ds_base, + c->regs[VCPU_REGS_RSI]), + &c->dst.val, + c->dst.bytes, + ctxt->vcpu)) != 0) goto done; register_address_increment(c->regs[VCPU_REGS_RSI], (ctxt->eflags & EFLG_DF) ? -c->dst.bytes |